单项选择题

The main cause of pollution is ______.

A．the production of new industrial goods
B．increased amounts of natural substance
C．our ever-increasing population
D．the release of artificial of natural substances into the environment

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热门试题

单项选择题

People can help solve the problem of pollution by ______.

A．urging their governments to control litter and waste
B．cutting down the use of oil and other oil products
C．reducing unnecessary buying, over-consumption and careless disposal of wastes
D．Making anti-pollution advertisements

单项选择题

Many people see pollution as only part of ______.

A．the environmental balance
B．our daily life
C．the consumption of goods by man
D．the whole process of industrial production and consumption of goods